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HTML and CSS · lesson 29 of 30 · free

Your first website — HTML and CSS for kids

A small website is just a folder of files. index.html is the home page with the HTML, style.css holds the CSS, and script.js holds the JavaScript. Link the CSS from the head and load the script with a script tag. Plan what to show, write the HTML, add styles, test in a web browser — save and refresh after every change — and then publish it online with a parent or teacher.

▶ Watch how it works

Got it? Practise ↓

Code tip

One file per job — “HTML in index.html, CSS in style.css, JavaScript in script.js”

  1. Tags → index.html; selector { … } → style.css; let, alert, console.log → script.js.
  2. Plan → write the HTML → add CSS → test in a browser → publish.
  3. Use small letters and dashes in file names; save and refresh to see changes.

Use it for: Building a hobby page, a class project site or a portfolio of your work.

Worked example: 🚀 Which file should this code go in: <p>Hello!</p> → index.html

  1. <p>Hello!</p> is an HTML tag with content.
  2. HTML goes in index.html.

Check: p { color: red; } would go in style.css ✓

▶ Watch it animated

✓ Written and checked by the TalentJR team · Updated 13 Oct 2026 · How we make our lessons

✏️ Practice

Work it out in your head or on paper, then tap your answer — or type it and press Check. Stuck? Press “Show me how”.

Right: 0 · Tried: 0

🏁 Lesson 29 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the 🚀 Website Launcher badge when you pass — and a certificate when you finish all 10 lessons of Part 3 · Web Development. You can still take the test without signing in.

🖨️ Web Worksheet: Your First Website

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